<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<!--table声明一个表格
tr:声明一行
th;表头格,一行
td:声明一个单元格
cellspacing:边框
-->
<table border="1px" cellspacing="0px">
    <tr  >

        <td align="center" width="50px">  <b>姓名</b>   </td>
        <td>年龄</td>
        <td>地址</td>
    </tr>
    <tr>
               <td>张三</td>
        <td  colspan="2" align="center">23合肥</td>
    </tr>
 <tr>
        <td>李四</td>
        <td>25</td>
        <td rowspan="2">北京</td>
    </tr>
<tr>
        <td>王五</td>
        <td>26</td>

    </tr>

</table>
</body>
</html>